21454860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2221}}^1$

素因数の和:2263

約数の個数: 96

約数和(自身を含む): 71672832

約数和(自身を除く): 50217972

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1932, 2221, 2415, 3220, 4442, 4830, 6663, 8884, 9660, 11105, 13326, 15547, 22210, 26652, 31094, 33315, 44420, 46641, 51083, 62188, 66630, 77735, 93282, 102166, 133260, 153249, 155470, 186564, 204332, 233205, 255415, 306498, 310940, 357581, 466410, 510830, 612996, 715162, 766245, 932820, 1021660, 1072743, 1430324, 1532490, 1787905, 2145486, 3064980, 3575810, 4290972, 5363715, 7151620, 10727430, 21454860]

約数ペア:

[(1, 21454860), (2, 10727430), (3, 7151620), (4, 5363715), (5, 4290972), (6, 3575810), (7, 3064980), (10, 2145486), (12, 1787905), (14, 1532490), (15, 1430324), (20, 1072743), (21, 1021660), (23, 932820), (28, 766245), (30, 715162), (35, 612996), (42, 510830), (46, 466410), (60, 357581), (69, 310940), (70, 306498), (84, 255415), (92, 233205), (105, 204332), (115, 186564), (138, 155470), (140, 153249), (161, 133260), (210, 102166), (230, 93282), (276, 77735), (322, 66630), (345, 62188), (420, 51083), (460, 46641), (483, 44420), (644, 33315), (690, 31094), (805, 26652), (966, 22210), (1380, 15547), (1610, 13326), (1932, 11105), (2221, 9660), (2415, 8884), (3220, 6663), (4442, 4830)]